Manufacture of wire-glass.



U. APPLE & W. BUTTLER. MANUFAGTURE OF WIRE GLASS. APPLIUATION FILED APB. 27, 1907.

902,84;9. Patentd Nov. 3, 1908.

2 SHEETS-SHEET 1.

FIG. 1

WITNESSES. mvENToR5 W OMEz cam! 4 0. APPLE & W. BUTTLER. MANUFACTURE OF WIRE GLASS.

APPLIUATION FILED APR. 27, 1907.

Patented Nov. 3, i908 2 BHEET8-8HTIET 2 INVEHTORS ma za m/ WITNESSES.

UNITED STATES I:ATENT OFFICE.

CHARLES APPLE AND WILLIAM BUTTLER, OI INDIANAPOLIS, INDIANA, ASSIGXORS TO MARIE'ITA GLASS COMPANY, OF 1N DIAXAPOLIS, INDIANA.

MANUFACTURE OF WIRE-GLASS.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filett April 27; 1907. SerialNo. 370,572.

separated from each other; Fig. 2 is a side elevation, the hopper being; open to pern'iit the passage of the glass in front of the rolls; Fig. 3 is a vertical sectional view. the wiresiuoportin chute being brought in contact with the first roll; and Fig. l is a like view showing the wire-glass during the process of rolling.

Our invention relates to an iin 'n'oveinent in the manufacture of wireglass of the general character that has been described innumerous Letters Patent of the llnited States and other countries since the year 1887. This wire-glass, which n a well-known,article of,

manufacture,consists generallyof '\vire-netting embedded in a mass or plates of glass,

theob'ect being to strcn 'theu the glass and to the plate to be rollou. and 1t may be varied kee the sheet intact. even when the glass it sel has been. cracked or shattered by heat or other destructive agency. Although various methods have been employed in the manufacture of wire-glass, these methods have produced, in different degrees, one and the same article of manufacture.

The ordinary method, as practiced today, consists in first forming one sheet of glass on a table, placing the wire-netting upon the sheet while it hot and in a plastic condition, and then forming a second sheet of glass on top of the wire-netting, the two sheets being sutlieiently plastic to weld to each other, thus inclosing the wirenettinp in the interior of a single plate or sheet of glass. This sometimes has been accomplished by apiaratus consisting of two or more rolls and two batches of, molten glass, one of the rolls serving to press the wirenetting into the lower sheet of glass on the table, and the next succeeding roll serving to press the second batch of glass into a sheeton. top of the first rolled sheet, thus br nging the, wire-netting in the middle of the plate of glass forin ed'by the welding together of the two batches of glass. v

The chief dilliculties'fouinl in the manufacture of wire-glass by this apparatus are the impossibility of properly dividing a sin gle batch of glllfis into separate portions and the divergence of degree 01' tcniperaturc incident to the pouring; of separate batches from separate ladies. Difiiculty has also been experienced by the too great separation of the rolls from each other where separate batches are poured'on the table, which allows too great and also unequal chilling of the glass during the rolling operation.

The object of our invention is to overcome these objectionable features.

\Ve will now describe our invention that others skilled in the art may nianufactine and use the same.

In the drawings, '2 represents the table, which may be ofthe form of the ordinary casting table. 011 this table are mounted the two rolls a and the one in front of the other, but a short distance apart, and both being provided with end flanges 3 and l. The face of the first roll a rests directly on the face of the table 2, while the face of the second roll I) is elevated above the surface of the table the collars 5, this elevation being substainiall equal to the thickness 01' by using collars of ditlerent thickness. These rolls a and L are connected with each other by theside yokes G, which are provided with open journal notches 7 ada )ted to encircle the necks or spindles 8 ot the rolls. In order to prevent the yokes (i from escaping from the necks of the rolls, collars 9 encircle the necks or spindles of the rear roll, which collars are 101110\ fibl} pivoted to the vokes l3. Mounted on the yokes 6, and extending from the yoke. on one side of the rolls to the yoke on the other is the hopper 0 adapted to con tain sufficient glass to form both sheets, which together form the plate of glass. This hopper may be provided with an in- \erted V-shaped bottom 10 and with swinging front and rear doors 12 which are pivoted at their outer portion to the ends of the hopper, and in their closed position may be inclined inwardly so that when the doors are released they will simultaneously open by gravity and allow the batch of glass 0011- tained in the hopper to be divided into two equal parts by the inverted V bottom 10 and s'slidable inclined chute d, which serves to support the wire-netting and to direct it against the base of the roll a in rear of that portion of'the glass which has been dropped from the forward side of the hopper c.

Any of the ordinar and Well known devices may be employed for imparting movement to the rolls a and b on the table 2.

The operation of our improved a pa 'atus is as follows: The rolls a and being brought toone end of the table 2, a batch of molten glass is poured into the hopper 0, and the 'wire-nettin chute, carrying the wire-netting is broug it in front of the roller a; the doors 12 of the hopper c are then opened, permitting the molten glass, divided 111 two equal portions by the dividing bottom 10, to pass to the table 2 in front of the rolls a and b. The forward movement is then imparted to the rolls a and b and the glass is rolled to a plate having a wire web embedded therein. The first roll a may be provided with annular ribs, suclras have been used for many years for forcing the wire-netting into the first batch or sheet of glass.

In order to prevent the glass tro1nst1ckingito the sides or bottom of the hopper 0, we may lme the hopper with carbon or carbonaceous matter, between which and the aaimolten glass there'is less adhesion. than there would be between metal and glass.

The advantages of our invention will be appreciated by those skilled in the art. In

the use of our invention, the plastic glass is 40 mechanically divided into two equal batches delivered evenly in front of each of the rol.1s,, tlnlsinsuriny" mathematical equality in the amount of gIass delivered in front of each of the rolls and also insuring an absolute evenness in the masses of glass from one side of the table to the other Owing to the use of the hopper we are also enabled to bring the two rolls a and I) quite close to.

each other, which prevents 'the hardening rollin and chilling of the glass before the welding takes place.

Having thus described our invention, what we claim and desire to secure by Letters Patent is:

1. In the manufacture of wire-glass, the process of embedding wire-netting therein consisting in pouring the glass in a single batch, discharging the batch simultaneously into two even separate and unformed parts, rolling the Wire-netting into one batch and theother batch at welding" la-at on top of the \vire'netting.

2. 1n the n'iainifacture of wireglass, the combination of a table, a multiplicity of rolls, and a hopper adapted to deliver molten glass simultaneously in front of each of the rolls.

3. In the manufacture of wire-glass, the combination of a table, a multiplicity of rolls, and a hopper having a dividing bot tom and aperture adapted to deliver the glass in front of more than one of the rolls.

4. In the manufacture of Wire-glass, the combination of a table, amultiplicity of rolls, a hopper mounted on the rolls and having a V-shaped bottom and doors adapted to deliver molten glass in the path of more than one of the rolls.

.5. In the manufacture of wire-glass, the combination of a table, one or more rolls and a hopper for delivering glass in from of the rolls, the hopper having a dividing bottom and a carbonaceous lining.

6. In the manufacture of wire glass, the combination of a table, a multiplicity of rolls, a chute for delivering wire netting in front-ofone of the rolls, and a hopper rarried by the rolls and adapted to deliver pou ticns of glass in front of more than one of the rolls.

In testimony whereof, we have hereunto set our hands.

CHARLES APPLE. \VILLIAM BUT'lLlflll.

\Vitnesses J. M. Mannter, Mrrrln MITCHELL.

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